A relatively easy World Boss, R4-GL can be found on Nar Shaddaa in the top right of the Network Security District. It can be accessed by both Empire and Republic players. Traditionally the fight would require 8 players, 1 Tank, 1 Healer and 6 DPS. However, it is possible to defeat R4-GL with only two players, for this method it is recommended to have a core DPS and a DPS with minor healing abilities. During the fight your companions will be entered into a feared state, leaving them unable to fight. This guide will focus mainly on the traditional method.

To begin, you will want a minimum of 6 players. 1 Tank, 1 Healer and 6 DPS. There are two primary abilities that will be a concern, Repeater Cannon and Incendiary Cannon. Incendiary Cannon will place a DoT debuff on a random member of the group, this will not be the tank. Maintain heals on the player with this buff as it can rack up over time causing major damage, all heals to this player will also be reduced by the Incendiary Cannon. Lastly R4-GL's other primary ability is it's Repeater Cannon, throughout the fight this should effect only the Tank. Repeater Cannon is a charged ability and is interrupt able, you will want to have a rotation between 2 of your DPS, focusing on interrupting this ability. If not interrupted it can cause a large amount of damage on your Tank.

At around 25% Health remaining on the World boss it will enter an Enraged State. During this stage it will be immune to interrupts, you'll want to have your Tank take all of the damage during this stage. Have all healers focus on the Tank and make sure they remain over healed.